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Thermal Underwear, Long underwear, or Long Johns

Maybe you're an avid extreme winter mountain trekker or you simply get the chills while working in the cool office, you operate heavy mining equipment year round or you work for the US Coast Guard. Either way, thermal long underwear, also known as base layer or long johns, may be just what you need to stay warm and comfortable. The type you choose will depend on your activity level, your budget, and the temperature.

Men's Thermal Underwear Women's Thermal Underwear Kid's Thermal Underwear

Thermal Underwear

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11 Item(s)

  1. Youth Quest Performance Thermal Shirt

    • Single Layer Engineering • ColdPruf® Technical Fiber Polyester with SILVADUR™ Intelligent Freshness • Controls odor and inhibits bacterial growth on fabric • Wicks and aids in moisture evaporation • Brushed inside for warmth and comfort • 85% Microfiber Polyetser • 15% Spandex • Fabric Weight: 6.5 oz. • Drop Shoulder Design • Self Fabric Cuffs • Tagless, Flat Seams offer added comfort

    Regular Price: $16.99

    Special Price $12.99

  2. Avalanche Women's Mogul Zip Neck

    • Base Layer; next to skin fabric • Provides thermal insulation • Body-hugging 4-way stretch privdes unrestricted movement • Quick absorption; keeps your skin dry • Highly breathable, allows moisture vapor to escape • Warmth without the weight or bulk • Machine washable

    Regular Price: $52.99

    Special Price $34.00

  3. Coldpruf Cotton Polyester 2 Layer Long Johns for Youth

    • 2 layer thermal fabric traps and retains body heat • Tagless • Flatlock seams • Ribbed Cuffs • 60% Cotton / 40% Polyester

    Regular Price: $27.99

    Special Price $18.99

  4. Coldpruf 100% Polypropylene Moisture Wicking Long Underwear Shirt for Youth

    • Superior moisture management • Polypro retains more heat than any other fabric • Polypro dries extremely fast • Keeps skin dry • Worn by US Navy and US Coast Guard • Tagless • Ribbed Cuffs • Flatlock seams • 100% Polypropylene
    $14.99
  5. Coldpruf 100% Polypropylene Moisture Wicking Long Underwear Pant for Youth

    • Superior moisture management • Polypro retains more heat than any other fabric • Polypro dries extremely fast • Keeps skin dry • Worn by US Navy and US Coast Guard • Tagless • Ribbed Cuffs • Flatlock seams • 100% Polypropylene
    $14.99
  6. Coldpruf Cotton Poly Thermal Underwear Bottom for Women

    • Super Soft Cotton Poly Thermal Blend • 2 Layer Fabric Traps Body Heat and Retains it • Hemmed Cuffs • Perfect for light winter activity in moderate cold • 60% Combed Cotton/40% Polyester • Flatlock Seams • Tagless

    Regular Price: $15.00

    Special Price $10.99

  7. Coldpruf Merino Wool Blend Long Johns Top for Women

    • Luxuriously warm thermal knit fabric • Hemmed cuffs • Flatlock Seams • Tagless • 100% Cotton Inside/65% Cotton,25%Merino Wool,10% Nylon Outside
    $26.99
  8. Coldpruf Merino Wool Performance Thermal Underwear Top for Women

    • Double layer performance thermal fabric • Extended shirt tail stays tucked in better • Superior moisture control • Easy care laundering • Dries fast • Traps and retains body heat even when wet • Keeps skin dry • Tagless • Flatlock seams 100% polyester outside/70% polyester,30% merino wool inside
    $25.99
  9. Coldpruf Merino Wool Performance Thermal Underwear Pant for Women

    • Double layer performance thermal fabric • Superior moisture control • Easy care laundering • Dries fast • Traps and retains body heat even when wet • Keeps skin dry • Tagless • Flatlock seams 100% polyester outside/70% polyester,30% merino wool inside
    $25.99
  10. Coldpruf Extreme Performance Thermal Underwear Top for Women

    • Our warmest Coldpruf long underwear (rated for extreme cold temperatures) • Comparable to UNDERARMOUR® brand • Spandex stretch engineered for high activity (360 degree stretch) • Excellent moisture management • Flatlock seams • Self fabric cuffs • Tagless • 96% CPT polyester /4% Spandex

    Regular Price: $41.00

    Special Price $19.99

  11. Indera Mills Antimicrobial Unisex Youth Performance Thermal Underwear Set for Youth

    • Top (shirt) and Bottom (pant) Set • Antimicrobial silver ion fabric technology prevents odor • Wicks moisture • Great for hi endurance winter activities like skiing/snowboarding/cross country • Dries quickly • Retains heat when wet • 100% HydroPur polyester rib knit
    $20.00
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11 Item(s)